The M481LIDAE is a high performance, low power microcontroller powered by the Arm® Cortex®-M4F core with DSP extension. It can run up to 192 MHz with 175 µA/MHz dynamic low power consumption. The 512 KB embedded dual bank Flash memory supports OTA (Over-The-Air) firmware upgrade, and the 160 KB embedded SRAM includes 32 KB cache to speed up external SPI Flash code execution. The factory pre-loaded bootloader delivers Secure Boot functionality to provide the code integrity check in embedded Flash memory. The built-in Secure Protection ROM provides a safe space for saving confidential program or data. One-Time Programmable ROM is also included for product life-cycle management.

The M481LIDAE supports operating voltage from 1.8V to 3.6V, and industrial operating temperature from -40°C to 105°C. It is equipped with high speed UART/ SPI/ I²C/ PWM peripherals. Package type is LQFP48.

Target Application:IoT Device, Data Collector, etc.

Key Features:

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Core

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Up to 192 MHz Arm® Cortex ®-M4F delivering 1.25 DMIPS per MHz

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DSP instruction set

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Memory Protection Unit (MPU)

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Memory

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512 KB zero-wait state Flash memory

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160 KB RAM, including 32 KB external SPI Flash cache

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4 KB Secure Protection ROM

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2 KB One-Time-Programmable ROM

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Cyclic Redundancy Calculation Unit

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16-ch Peripheral DMA Controller

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External Bus Interface

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LCD parallel interface, i80 mode

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Clocks

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4 to 24 MHz crystal oscillator

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32 kHz oscillator for RTC

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Internal 12 MHz RC oscillator

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Internal 10 kHz RC oscillator

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Internal PLL up to 480 MHz

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RTC

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80 bytes of battery-powered backup registers

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Timer & PWM

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Four 32-bit timers

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Twelve Enhanced PWM with twelve 16-bit timers

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Twelve Basic PWM with two 16-bit timers

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One 24-bit count-down SysTick timer

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One watchdog timer

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One window watchdog timer

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Analog Peripheral

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One 12-bit, up to 12-ch 5MSPS SAR ADC

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Two 12-bit, 1 MSPS DAC

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Two rail-to-rail comparators

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Two operational amplifiers

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Communication Interface

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Up to 6 low power UART interfaces (17 Mbps), including 2 LIN interfaces